code: def _transform_to_positive(constraint):
      # Although `constraint` is not used in this factory function,
      # we decide to keep it for the purpose of consistency.
      # pylint: disable=unused-argument
      return ExpTransform()
  
file_path: mxnet/python/mxnet/gluon/probability/transformation/domain_map.py
imports: from numbers import Number
  from .transformation import ExpTransform, AffineTransform, SigmoidTransform, ComposeTransform
  from ..distributions.constraint import Constraint, Positive, GreaterThan, GreaterThanEq, LessThan, Interval, HalfOpenInterval
label_desc: Use image node_id 1 for calling a global function with example usage: _transform_to_positive(constraint) and returns: ExpTransform